Quick Answer: Which is the following is the correct definition of a chromosome?

In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure. … DNA and histone proteins are packaged into structures called chromosomes.

Which is the correct definition of a chromosome?

(KROH-muh-some) A structure found inside the nucleus of a cell. A chromosome is made up of proteins and DNA organized into genes. Each cell normally contains 23 pairs of chromosomes.

What is a chromosome in simple words?

Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.

What is chromosome and its function?

Chromosomes are thread-like structures present in the nucleus, which carries genetic information from one generation to another. They play a vital role in cell division, heredity, variation, mutation, repair and regeneration.

What is chromosome Class 9?

Chromosomes are the genetic material present in all cells. They are present in the nucleus of a eukaryotic cell. They are a thread-like structure. Each chromosome of a eukaryotic cell contains DNA and associated proteins, known as histone proteins.

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What is a gene simple definition?

(jeen) The basic unit of heredity that occupies a specific location on a chromosome. Each consists of nucleotides arranged in a linear manner. Most genes code for a specific protein or segment of protein leading to a particular characteristic or function.

What is a chromosome kid definition?

Say: kro-muh-soamz. Your body is made up of billions of cells, which are too small to see without a strong microscope. Inside most of those cells are chromosomes, which are thread-like strands that contain hundreds, or even thousands, of genes. Genes determine physical traits, such as the color of your eyes.

What are chromosomes class8?

A chromosome is a DNA molecule that consists of a part or all of the genetic material of an organism. The chromosome is present in the nucleus of each cell, and it is packaged into thread-like structures. … All living organisms have chromosomes; humans have 23 pairs of chromosomes.

What are the 4 types of chromosomes?

Chromosomes can be classified into 4 types based on the length of the chromosomal arms and the position of the centromere.

  • Sub metacentric chromosomes.
  • Acrocentric chromosomes.
  • Telocentric chromosomes.
  • Metacentric chromosomes.

What is chromosome and its structure?

In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure. … DNA and histone proteins are packaged into structures called chromosomes.

What is a chromosome Class 12?

Chromosomes are thread-like structures within which DNA is tightly packaged in the nucleus. It can also be defined as a DNA molecule with part or all of the genetic material of an organism.

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What is Gene Class 10 CBSE?

A gene is a small portion of the DNA, with codes for a particular polypeptide or a protein. In other words, it is the functional unit of the DNA. It is also responsible for the transmission of hereditary characters from the parents to the offspring.